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Finding the Fourth Proportional to 350.34, 522.94 and 309.80

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Solution

The fourth proportional to 350.34, 522.94 and 309.80 is: 462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.34 : 522.94 = 309.80 : x
  2. Step 2: Convert to fraction form
    350.34/522.94 = 309.80/x
  3. Step 3: Cross multiply
    350.34x = 522.94 × 309.80
  4. Step 4: Simplify right side
    350.34x = 162,006.81
  5. Step 5: Solve for x
    x = 162,006.81/350.34
  6. Step 6: Final answer
    x = 462.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.